Often, you might want to change or edit a service, or a package/membership after you've created it. Say you change a price, or you adjust the services inside a package. Now, you can edit/adjust all of the selections in a service!
Now, you can adjust ALL of the items related to a service. Click 'Edit' next to the service name, and change away! See the screenshot below for details on exactly what can be changed - oh wait, you can change EVERYTHING!!!
Make the changes you'd like, then click 'Save'. Note that any changes will apply from that point on to any customers who then book or purchase that service. Any existing classes or appointments on the calendar will continue to stay booked, but the price will show the NEW price. Customers will NOT need to pay anything new, it's only the NEW customers booking who will be affected.